Unverified80% confidenceTradeoffTime unknown
凝固速度快与操作容错性存在权衡：卡拉胶型降至约40℃即开始凝固，倒模操作窗口短，新手易产生气泡和分层；明胶型凝固慢、操作从容但需冷藏且脱模较软
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